MAX3601
Laser Driver for Projectors
General Description
Benefits and Features
The MAX3601 laser driver for pico projectors supports
video imaging with red, blue, and green lasers. Each
output includes two 8-bit digital-to-analog converters
(DACs) with programmable gain and up to 400mA
driving capability per channel. DAC A has a full-scale
current up to 320mA, while DAC B has full-scale current
up to 80mA. All three channels can be combined into a
single channel with up to 1.2A drive capability.
S Integrates Three Current-Output Laser Drivers
Compatible with Most Red, Blue, and Green
Lasers
8-Bit Video DACs, DC to 167MHz operation
Patented Pulsing Feature Reduces Laser
Speckling
1ns Output Switching Time
Pulse Switching Speed Enhancer
Maxim’s patented technology allows pulsed current to
operate lasers efficiently while reducing speckle. This
feature operates from the video data clock. The driver
is available in a 3.0mm x 3.5mm, 42-bump wafer-level
package for commercial applications and a 5mm x 5mm,
40-pin TQFN package for industrial and automotive
applications.
S Minimizes PCB Area with Functional Integration
SPI or I2C Serial Port Control
1.8V to 3.3V Operation
8-Bit Gain Adjustment
Programmable Pulse Current
42-Bump WLP (3.0mm x 3.5mm) and 40-Pin
TQFN (5mm x 5mm) Packages
Integrated Temperature Sensor
Applications
Laser Light Source for LCOS Projectors
S Low Power Requirements
< 80mW for Black Video Images
Output Disable Using Video Marker
Output Voltage Sensor
High-Current LED or Laser Pulse Generator
S Laser Enable Function Supports Safety Compliance
RGB Pico Laser Projector
Ordering Information appears at end of data sheet.
CS
3-WIRE PORT DIO/SDA
(3.3V OR 1.8V CMOS) CLK/SCL
SERIAL PORT
Simplified Functional Diagram
GAIN SETTINGS
VIDEO SETTINGS
8
VIDEO DATA D[0:11]
(1.8V CMOS)
VIDEO CLOCK DCLK
(1.8V CMOS)
LASER DRIVER
8
VIDEO
OUTPUT 1
VIDEO
OUTPUT 2
VIDEO
OUTPUT 3
OUT2
LASER 1
+VA1
LASER 2
+VA2
DEMULTIPLEXER
8
PIXEL CLOCK
SUBPIXEL GENERATOR
MARKER
VIDEO MARK ENABLE
(3.3V OR 1.8V CMOS) EN_MAIN
OUT1
PULSE-OFF
TEMP ALARM
CONTROL LOGIC
EN1..3
OUT3
AVDD
DVDD
AVCC
DVCC
AGND
DGND
TESTA
TESTB
TESTC
LASER 3
+VA3
+1.8V
+3.3V
0V
For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX3601.related
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-6444; Rev 3; 3/15
